Add the polynomials. Express your answer in standard form.(4x2 - xy - y2) + (x2 + 9xy + 11y2)
A. 3x2 - 10xy - 12y2
B. 5x2 + 8xy + 10y2
C. 5x2 + 10xy + 12y2
D. 4x2 + 9xy + 11y2
Answer: B
Mathematics
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2
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A. > B. <
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Factor completely, if possible.x2 - x - 42
A. (x + 7)(x - 6) B. (x + 6)(x - 7) C. (x + 1)(x - 42) D. Prime
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Use the table of record trout lengths at Yosemite Lake to answer the question. To find the average, add up the values you are interested in and then divide the sum by the number of values. Round your answer to the nearest tenth.
Find the average length of record trout caught on Monday, Wednesday, and Friday.
A. 12.1 in. B. 11.6 in. C. 8.7 in. D. 13.0 in.
Mathematics